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Nonnative Rodents

Common Name Scientific Name First Observed Introduction Status

Gambian Pouched Rat

Cricetomys gambianus

2002 Pet Trade Unknown

Prairie Dog

Cynomys lucovicianus

1973 Pet Trade Extirpated

Capybara

Hydrochaeris hydrochaeris

1990s Pet Trade Established

House Mouse

Mus musculus

Unknown Unknown Established

Nutria

Myocastor coypus

2000s Unknown Established

Norway Rat

Rattus norvegicus

1800s Unknown Pet Trade

Black Rat

Rattus rattus

1700s Unknown Established

Mexican Red-bellied Squirrel

Sciurus aureogaster

1938 Pet Trade Established